NITE - Chemical Management Field

Latest GHS Classification Results by the Japanese Government (edited by NITE)

GENERAL INFORMATION

Item	Information
CAS RN	7631-90-5
Chemical Name	Sodium hydrogen sulfite (34% aqueous solution)
Substance ID	m-nite-7631-90-5_v1
Download of Excel format	Excel file

REFERENCE INFORMATION

Item	Information
Guidance used for the classification (External link)	To Guidance List
UN GHS document (External link)	To UN GHS document
FAQ（GHS classification results by the Japanese Government）	To FAQ
List of Information Sources (Excel file)	List of Information Sources
List of Definitions/Abbreviations	Definitions/Abbreviations
Sample Label by MHLW (External link)	To Workplace Safety Site (MHLW)
Sample SDS by MHLW (External link)	To Workplace Safety Site (MHLW)
OECD/eChemPortal (External link)	To OECD/eChemPortal (External link)

PHYSICAL HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification	Classification year (FY)	GHS Classification Guidance for the Japanese Government
1	Explosives	Not classified (Not applicable)	- -	-	-	There are no chemical groups associated with explosive properties present in the molecule.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
2	Flammable gases	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
3	Aerosols	Not classified (Not applicable)	- -	-	-	Not aerosol products.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
4	Oxidizing gases	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
5	Gases under pressure	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
6	Flammable liquids	Not classified	- -	-	-	It is an aqueous solution.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
7	Flammable solids	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
8	Self-reactive substances and mixtures	Not classified (Not applicable)	- -	-	-	There are no chemical groups present in the molecule associated with explosive or self-reactive properties.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
9	Pyrophoric liquids	Not classified	- -	-	-	It is an aqueous solution.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
10	Pyrophoric solids	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
11	Self-heating substances and mixtures	Classification not possible	- -	-	-	Test methods applicable to liquid substances are not available.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
12	Substances and mixtures which, in contact with water, emit flammable gases	Not classified	- -	-	-	It is an aqueous solution.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
13	Oxidizing liquids	Not classified	- -	-	-	It is a reducing agent (ICSC (2006)).	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
14	Oxidizing solids	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
15	Organic peroxides	Not classified (Not applicable)	- -	-	-	It is an inorganic substance.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
16	Corrosive to metals	Classification not possible	- -	-	-	No data available.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
17	Desensitized explosives	-	- -	-	-	-	-	-

HEALTH HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification	Classification year (FY)	GHS Classification Guidance for the Japanese Government
1	Acute toxicity (Oral)	Classification not possible	- -	-	-	Classification not possible due to lack of data. Besides, there is a report on an oral LD50 value of 1,400-2,000 mg/kg for rats on a 39% aqueous solution (GESTIS (Access on September 2013)). The average LD50 value of 1,310 mg/kg in the previous classification was based on reports in SIDS (2004), ACGIH (7th, 2001), RTECS (2004), but it was not adopted because they were reports on disodium disulfite (solid).	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Dermal)	Classification not possible	- -	-	-	Classification not possible due to lack of data. [Refer to the classification for this hazard class for disodium disulfite (CAS: 7681-57-4).]	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Inhalation: Gases)	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Inhalation: Vapours)	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Inhalation: Dusts and mists)	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
2	Skin corrosion/irritation	Classification not possible	- -	-	-	Classification not possible due to lack of data. Besides, this substance was not irritating in animal tests (IUCLID (2000)), but there is the information that concentrated solutions are irritating in humans (HSDB (Access on September 2013)), and it is classified in Class 8 in UNRTDG.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
3	Serious eye damage/eye irritation	Category 2B	- Warning	H320	P305+P351+P338 P337+P313 P264	As cases in humans, it is described that mild eye and respiratory responses are reported for this substance in the medical literature (ACGIH (7th, 2001)). As for animal experiments, there is the information that a test on an aqueous solution resulted in no irritation (IUCLID (2000)), but it is described in ACGIH (7th, 2001) that this substance was irritating to the eye (the intensity is not described). Because ACGIH is the information source in List 1, and IUCLID is the information source in List 2, the information in ACGIH was adopted, and the classification was revised to Category 2B.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
4	Respiratory sensitization	Classification not possible	- -	-	-	Classification not possible due to lack of data. There are no epidemiological information or case reports on this substance in humans, and no animal test reports, and it is described in the summary of ACGIH (2001) that sufficient data were not available to recommend a SEN notation for this substance. [Refer to the classification for this hazard class for disodium disulfite (CAS: 7681-57-4).]	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
4	Skin sensitization	Classification not possible	- -	-	-	Classification not possible due to lack of data. There are no epidemiological information or case reports on this substance in humans, and no animal test reports, and it is described in the summary of ACGIH (2001) that sufficient data were not available to recommend a SEN notation for this substance. [Refer to the classification for this hazard class for disodium disulfite (CAS: 7681-57-4).]	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
5	Germ cell mutagenicity	Classification not possible	- -	-	-	Classification not possible due to lack of data. There is no information on this substance. Besides, as information on sulfites, as for in vivo, they were negative in a dominant lethal test and a chromosomal aberration test with mice (ACGIH (7th, 2001)), and as for in vitro, there are positive results in a bacterial reverse mutation test and a gene mutation test with cultured mammalian cells (ACGIH (7th, 2001)), but this was not sufficient information on mutagenicity.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
6	Carcinogenicity	Classification not possible	- -	-	-	This substance was assessed as A4 in ACGIH (1995). And bisulfites were assessed as Group 3 in IARC (1992). Therefore, this substance was classified as "Classification not possible" because the category was changed according to the revised GHS classification guidance for the Japanese government.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
7	Reproductive toxicity	Classification not possible	- -	-	-	There are no reproductive or developmental toxicity data on this substance. [Refer to the classification for this hazard class for disodium disulfite (CAS: 7681-57-4).]	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
8	Specific target organ toxicity - Single exposure	Category 3 (Respiratory tract irritation)	Warning	H335	P304+P340 P403+P233 P261 P271 P312 P405 P501	It was classified in Category 3 (respiratory tract irritation) because it is described that it was irritating to the mucous membranes in animals, and there were mild respiratory responses in humans (ACGIH (7th, 2001)). The information used in the previous classification was deleted because it was from the information source in List 3 (GESTIS Access on September 2013), and the classification was newly conducted.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
9	Specific target organ toxicity - Repeated exposure	Classification not possible	- -	-	-	Classification not possible due to lack of data. Besides, one death from neurologic degeneration was observed in persons with a genetic defect in sulfite oxidase (ACGIH (7th, 2001)), and a case of a pancreatitis patient who developed hypersensitivity reactions and a case of an asthmatic patient whose symptoms were exacerbated are reported (HSDB (Access on September 2013)), but all was a report on only one case, and the association with this substance exposure was unclear. Besides, the previous classification was conducted by using the asthma cases due to occupational exposure and consumer exposure as the rationale, but it was confirmed that they were not the cases from exposure to this substance (but the cases from exposure to disodium disulfite). [Refer to the classification for this hazard class for disodium disulfite (CAS: 7681-57-4).]	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
10	Aspiration hazard	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))

ENVIRONMENTAL HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification	Classification year (FY)	GHS Classification Guidance for the Japanese Government
11	Hazardous to the aquatic environment Short term (Acute)	Classification not possible	- -	-	-	The classification is not possible because appropriate data are not obtained.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
11	Hazardous to the aquatic environment Long term (Chronic)	Classification not possible	- -	-	-	No data available.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
12	Hazardous to the ozone layer	Classification not possible	- -	-	-	This substance is not listed in the Annexes to the Montreal Protocol.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))

NOTE:

GHS Classification Result by the Japanese Government is intended to provide a reference for preparing a GHS label or SDS for users. To include the same classification result in a label or SDS for Japan is NOT mandatory.
Users can cite or copy this classification result when preparing a GHS label or SDS. Please be aware, however, that the responsibility for a label or SDS prepared by citing or copying this classification result lies with users.
This GHS classification was conducted based on the information sources and the guidance for classification and judgement which are described in the GHS Classification Guidance for the Japanese Government etc. Using other literature, test results etc. as evidence and including different content from this classification result in a label or SDS are allowed.
Hazard statement and precautionary statement will show by hovering the mouse cursor over a code in the column of "Hazard statement" and "Precautionary statement," respectively. In the excel file, both the codes and statements are provided.
A blank or "-" in the column of "Classification" denotes that a classification for the hazard class was not conducted in the year.
An asterisk “*” in the column of “Classification” denotes that “Not classified (or No applicable)” and/or “Classification not possible” is applicable. Details are described in the column of “Rationale for the classification”. If no English translation is available for “Rationale for the classification,” please refer to the Japanese version of the results.

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